In piece No. 6, attached, there should be some diminuendo if I'm not mistaken, but I don't know what the little triangle above the notes means and furthermore the sixteenth note has a small notch that I don't know what it signifies; if someone could give me a hand, I would be pleased.
The cut note is an embellishment. It is called an "acciaccatura" and the term itself says it.... it "crushes" almost together with the note that follows without stealing time. The dot on the note would remove half of its value, meaning it should be "detached"... but the circumflex accent tells us that the Author would like the note to be a bit "appoggiata".. that is, without running away as if the key "burned". In fact, the frog does not hop continuously... but pauses for a tenth of a second.... as if it were recharging its energy for the next jump. That is, it first releases its weight and then takes the new leap. ....It is worth observing it